263 Colossoma macropomum (Cuvier, 1816) Serrasalmidae Piranhas and pacus Colossomatinae Characiformes Teleostei Cachama South America: Amazon and Orinoco basins as wild form; pisciculture form largely distributed in South America. IGFA 11 S 64 W Colossoma macropomum IGFA 5 S 48 W Colossoma macropomum IGFA 1 S 46 W Colossoma macropomum IGFA 5 S 48 W Colossoma macropomum IGFA 1 S 46 W Colossoma macropomum IGFA 1 S 46 W Colossoma macropomum IGFA 1 S 46 W Colossoma macropomum not cataloged 9 N 62 W AMNH 88773 1991 Colossoma macropomum GCRL 26701 1995 Colossoma macropomum 2 m